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Expected delivery: 1–3 working days
See it in our shop in Aulum, Denmark – directions and opening hours- 14-day right of withdrawal and 365-day returns
- Shop and workshop in Aulum, Denmark
About RA Cut-Off Lever Spring, V2
Is your M4 playing up on semi-auto, or struggling to keep pace when you fire fast single shots? The Retro Arms Cut-Off Lever Spring is the small but vital spring that keeps your cut-off lever under the right mechanical pressure inside your Version 2 gearbox. Its job is to push the lever into place the moment the sector gear has completed a revolution, so the circuit is broken after exactly one shot.
The right resistance and long life for your M4 platform
If this little spring goes soft or breaks, your mechanical gearbox loses the ability to control the single-shot function properly. Retro Arms has therefore made this part with a full focus on durability:
- Premium hardened spring steel: Made from hard-wearing quality steel that keeps its precise elasticity and firm tension over time. It does not weaken, even after long sessions on the field.
- High precision: Bent to Retro Arms' tight tolerances, so it sits correctly in the gearbox slot without binding or jumping off the axle.
- Essential for refurbishing and tuning: Whether you are rebuilding a worn standard rifle or fine-tuning an accurate DMR build where single shot simply has to work every time, this spring is a critical detail.
Delivery and returns
Shipping options and prices for your country are shown at checkout.
Full 14-day right of return with a money-back guarantee. Unused items in unopened packaging can be returned for up to 365 days in exchange for a gift card. Easy returns via our returns portal. Read more in our terms and conditions.
